ChatGPT side chat
Ask quick side questions without polluting your main chats. GPT Master adds a Side Chat panel inside chatgpt.com: highlight any reply and the answer arrives in a separate right panel.
4,000+ users · 4.8★ on the Chrome Web Store · Free to install
Updated
Highlight a reply, then ask in the right panel. Main chat untouched.
Quick answer
ChatGPT does not have a built-in way to ask a sub-question about a single message without changing your main chat. Asking inline shifts the conversation off course; opening a new chat loses context. Side Chat solves this by opening a separate panel on the right with the highlighted text attached as context, so the side question is answered there and your main chat keeps its trajectory.
Compared to the alternatives
Most ChatGPT users have a workaround for the moment a side question comes up mid-thread. Each one costs something.
| Approach | Main chat intact? | Right context attached? | Sidebar stays clean? | Same tab? | Tradeoff |
|---|---|---|---|---|---|
| Ask inline in the main chat | ✗ | ✗ | ✓ | ✓ | Burns a ChatGPT message and steers the model off the original task. |
| Edit / regenerate from earlier | ✗ | ✓ | ✓ | ✓ | Everything after the edit point is replaced. |
| Open a new chat | ✓ | ✗ | ✗ | ✗ | Have to rebuild the surrounding context manually. |
| Copy-paste into Gemini / Claude | ✓ | Manually | ✓ | ✗ | The answer lives outside the conversation it belongs to. |
| ChatGPT Projects | ✓ | ✗ | ✗ | ✗ | Project-scoped, not message-scoped. Can't branch off one reply. |
| Side Chat | ✓ | ✓ | ✓ | ✓ | Free tier has a weekly cap on side questions. |
Tradeoff · Burns a ChatGPT message and steers the model off the original task.
Tradeoff · Everything after the edit point is replaced.
Tradeoff · Have to rebuild the surrounding context manually.
Tradeoff · The answer lives outside the conversation it belongs to.
Tradeoff · Project-scoped, not message-scoped. Can't branch off one reply.
Tradeoff · Free tier has a weekly cap on side questions.
What this looks like in practice
A market researcher is mid-conversation with ChatGPT, working through a long synthesis of three industry reports. Two-thirds of the way down a reply, ChatGPT drops in an acronym (TAM/SAM/SOM) the researcher wants double-checked before quoting it in the deliverable. Asking inline would derail the synthesis; the next reply would explain TAM/SAM/SOM instead of continuing the analysis. Opening a new chat would lose the report context entirely. With Side Chat, the researcher highlights the acronym and asks for a one-paragraph refresher in the right panel. The main chat, untouched, picks up exactly where it left off.
Frequently asked
These questions cover fit, workflow, and what to expect before installing GPT Master, so people can understand the feature in practical terms before clicking through to the Chrome Web Store.
Side Chat sends the text you highlighted, the full ChatGPT reply it came from, and the user prompt that produced that reply. Earlier messages in your main chat are not sent. The side question is scoped to that single exchange.
Side Chat conversations live in the right panel of the extension. They don't appear in your ChatGPT sidebar or your ChatGPT account history because Side Chat runs separately from ChatGPT's own conversation system.
No. Side Chat runs through GPT Master's own API, not through your ChatGPT account. Asking side questions doesn't touch your ChatGPT message cap or rate limits.
Yes, with a weekly cap on the free tier. Heavy users can lift the cap with GPT Master Pro from inside the extension.
Keep your main ChatGPT chats clean.
Add to Chrome4,000+ users · 4.8★ on the Chrome Web Store · Free to install
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